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r <br /> KL E/NFEL OER 4 <br /> spnr rcop:e e.gnc soroxons. <br /> 1 INTRODUCTION <br /> This report presents the results of a soil suitability and nitrate loading study performed for the <br /> proposed Shop Building Project for McFadden Construction located at 3855 East Farmington <br /> Road in Stockton, California. The Assessor's Parcel Number for the property is 173-140-03. An <br /> aerial photograph showing the approximate site boundaries is presented on Figure 1. The <br /> purpose of our study was to determine the suitability of the property for additional septic tank <br /> usage. The study was performed in general accordance with the requirements of Section 9-1105 <br /> of the San Joaquin County Ordinance Code. The following sections include background <br /> information regarding the existing site and the proposed development, past and present uses of <br /> the site, existing septic tank performance and permitting, and the groundwater conditions in the <br /> project area. In addition, discussions regarding our investigative procedures and the site <br /> conditions encountered during our field exploration are included. Finally, the results of our <br /> percolation tests, nitrate loading calculations, and subsequent conclusions are presented. <br /> We understand the existing vacant site will be developed into a construction shop and staging <br /> site. The shop structure will be about 10,000 square foot, single-story steel structure developed <br /> near the center of the site. Areas around the structure will be mostly paved with parking areas in <br /> the southern area of the site for employees and customers. An on-site septic/leach field/seepage <br /> pit system will provide sewage disposal and will be located in the southeastern area of the <br /> development. Water for domestic and fire use will be provided by the city of Stockton. It should <br /> be noted that the site consists of two parcels but the western parcel will not be developed and is <br /> not considered as part of this study. A map showing the site vicinity is presented on Figure 2. A <br /> site plan showing the approximate location of the septic/leach field/seepage pits is presented on <br /> Figure 3 <br /> • <br /> 20173772.001A/ST017R57809 Page 1 of 15 April17, 2017 <br /> ©2017 Kleinfelder www.kleinfelder.com <br />